I recently put a post out on wet sanding
here is another trick you can use with earlier model white cars.
Ajax yes Ajax
it essentially does the same thing as wetsanding
but a lot less work.
you simply wash the car with ajax the same as you would with a bath tub
then you come back over that with a wool pad and a good compound
then you glaze
and wax.
sounds crazy but this was my first foray into the world of paint restoration
an old timer from south Carolina taught me this.
Now he said it only works with white cars
I don't know why
and I have never tried it with anything else
I did an audi 5000 using this method and the car came out looking like a show car.